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Carlsson upgrades the Mercedes-Benz CLS63 AMG for the Geneva motor show

February 28, 2012

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If supercars had a spiritual home all to themselves, it probably would be the Geneva motor show. This year we'll see the new Ferrari F12 Berlinetta, the Lamborghini Aventador Roadster and the Aston Martin V12 Zagato. But it's not only the home of production supercars; the tuning companies come out to show their wares as well.

Carlsson is one such company. It will hit the Swiss city with the range-topping CK63 RS, based on the Mercedes-Benz CLS63 AMG.

The 6.3-liter hammer in the CLS makes 550 hp with the Performance package, meaning it's no slouch in any company. But with a curb weight of more than two tons, well, it's still fast.

Carlsson massages the V8 engine with tuning software, adds a multiflow stainless-steel exhaust and drops in a new transmission-oil-cooling system. The result is 652 hp with 737 lb-ft of torque at 2,000 rpm to 4,500 rpm. Carlsson sticks with AMG's Speedshift seven-speed automatic transmission. All of this allows the CK63 to get from 0 to 60 mph in 4.1 seconds.

For the ride, Carlsson ditches the AMG Ride Control suspension in favor of its own springs that lower the car by 30 millimeters. The company installs nine-inch wide, one-piece wheels in front and 10.5-inch-wide wheels in the back, all four of which are 20 inches in diameter. The lightweight wheels are offered in titanium, graphite and brilliant surface finishes.

Elsewhere on the exterior, Carlsson adds a front spoiler and an RS front spoiler lip. Black stainless-steel inserts are added to the front, while the rear gets an integrated spoiler and apron.

Inside the upgraded CLS, Carlsson adds its signature line with full leather interior including a compilation of brown Alcantara and mocha-brown napa leather. The company also expanded the infotainment system to include high-speed Internet access. The interior is rounded out with Carlsson floor mats, door-sill panels, and door-locking pins made from polished aluminum.